8. Supplementary Balance Sheet Information

The following tables provide the details of selected balance sheet items as of the periods indicated (in thousands):

Inventories


	June 29, 2012		December 31, 2011
Raw materials	$	33,051	$	30,406
Work-in-process		12,078		12,943
Finished goods		6,832		6,563
Demo and consigned inventory		1,752		1,627

Total inventories	$	53,713	$	51,539

Accrued Expenses and Other Current Liabilities


	June 29, 2012		December 31, 2011
Accrued compensation and benefits	$	7,575	$	7,512
Accrued warranty		2,932		3,035
Customer deposits		2,434		380
Other		6,998		8,000

Total	$	19,939	$	18,927

Accrued Warranty


	Six Months Ended
	June 29, 2012			July 1, 2011
Balance at beginning of the period	$	3,035		$	3,174
Provision charged to cost of goods sold		1,578			1,032
Use of provision		(1,699	)		(1,302	)
Foreign currency exchange rate changes		18			67

Balance at end of period	$	2,932		$	2,971